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Finding the Fourth Proportional to 530.84, 794.43 and 453.48

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Solution

The fourth proportional to 530.84, 794.43 and 453.48 is: 678.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.84 : 794.43 = 453.48 : x
  2. Step 2: Convert to fraction form
    530.84/794.43 = 453.48/x
  3. Step 3: Cross multiply
    530.84x = 794.43 × 453.48
  4. Step 4: Simplify right side
    530.84x = 360,258.12
  5. Step 5: Solve for x
    x = 360,258.12/530.84
  6. Step 6: Final answer
    x = 678.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.